Generally, a download manager enables downloading of large files or multiples files in one session.Many web browsers, such as Internet Explorer 9, include a download manager.Stand-alone download managers also are available, including the Microsoft Download Manager.

if you do not have a download manager installed, and still want to download the file(s) you've chosen, please note:

You may not be able to download multiple files at the same time.In this case, you will have to download the files individually.(You would have the opportunity to download individual files on the "Thank you for downloading" page after completing your download.)

Files larger than 1 GB may take much longer to download and might not download correctly.

You might not be able to pause the active downloads or resume downloads that have failed.

The Microsoft Download Manager solves these potential problems.It gives you the ability to download multiple files at one time and download large files quickly and reliably.It also allows you to suspend active downloads and resume downloads that have failed.

Note:There are multiple files available for this download.Once you click on the "Download" button, you will be prompted to select the files you need.

Version:

4.1.10715.0

File Name:

EntityFramework41.exe

EF4.1 Release Notes.rtf

License.rtf

Date Published:

7/22/2011

File Size:

1.6 MB

92 KB

171 KB

ADO.NET Entity Framework 4.1 introduces two new features:

The DbContext API is a simplified abstraction over ObjectContext and a number of other types that were included in previous releases of the ADO.NET Entity Framework. The DbContext API surface is optimized for common tasks and coding patterns.

Code First is a new development pattern for the ADO.NET Entity Framework and provides an alternative to the existing Database First and Model First patterns. Code First is focused around defining your model using C#/Visual Basic .NET classes, these classes can then be mapped to an existing database or be used to generate a database schema. Additional configuration can be supplied using Data Annotations or via a fluent API.

Update 1 includes a small set of changes including:

Bug fix to remove the need to specify ‘Persist Security Info=True’ in the connection string when using SQL authentication. In the EF 4.1 release ‘Persist Security Info’ was required for Code First to be able to create a database for a connection using SQL Authentication. The update includes a fix to remove this requirement. Note that ‘Persist Security Info’ is still required if you construct a DbContext using a DbConnection instance that has already been opened and closed.

Introduction of new types to facilitate design-time tools for Code First. Update 1 introduces a set of types to make it easier for design time tools to interact with derived DbContexts:

DbContextInfo can be used to instantiate and interact with a derived context as well as determine information about the origin of the connection string etc..

IDbContextFactory is used to let DbContextInfo know how to construct derived DbContext types that do not expose a default constructor. If your context does not expose a default constructor then an implementation if IDbContextFactory should be included in the same assembly as your derived context type.